B-Phase Current using Fault Impedance (LLF) Calculator

✖B phase Voltage is defined as the voltage of b-phase.ⓘ B Phase Voltage [V_b]			+10% -10%
✖C phase Voltage is defined as the voltage of c-phase.ⓘ C Phase Voltage [V_c]			+10% -10%
✖Fault Impedance is a measure of the resistance and reactance in an electrical circuit that is used to calculate the fault current that flows through the circuit in the event of a fault.ⓘ Fault Impedance [Z_f]			+10% -10%

✖B phase Current is defined as the current flowing through the b-phase in open conductor fault.ⓘ B-Phase Current using Fault Impedance (LLF) [I_b]

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B-Phase Current using Fault Impedance (LLF) Solution

STEP 0: Pre-Calculation Summary

Formula Used

B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance
I_b = (V_b-V_c)/Z_f
This formula uses 4 Variables

Variables Used

B Phase Current - (Measured in Ampere) - B phase Current is defined as the current flowing through the b-phase in open conductor fault.
B Phase Voltage - (Measured in Volt) - B phase Voltage is defined as the voltage of b-phase.
C Phase Voltage - (Measured in Volt) - C phase Voltage is defined as the voltage of c-phase.
Fault Impedance - (Measured in Ohm) - Fault Impedance is a measure of the resistance and reactance in an electrical circuit that is used to calculate the fault current that flows through the circuit in the event of a fault.

STEP 1: Convert Input(s) to Base Unit

B Phase Voltage: 16.5 Volt --> 16.5 Volt No Conversion Required
C Phase Voltage: 17.2 Volt --> 17.2 Volt No Conversion Required
Fault Impedance: 1.5 Ohm --> 1.5 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_b = (V_b-V_c)/Z_f --> (16.5-17.2)/1.5

Evaluating ... ...

I_b = -0.466666666666666

STEP 3: Convert Result to Output's Unit

-0.466666666666666 Ampere --> No Conversion Required

FINAL ANSWER

-0.466666666666666 ≈ -0.466667 Ampere <-- B Phase Current

(Calculation completed in 00.004 seconds)

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Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< Current Calculators

Positive Sequence Current (LLF)

LaTeX Go Positive Sequence Current = (-1)*Negative Sequence Current

Negative Sequence Current(LLF)

LaTeX Go Negative Sequence Current = (-1)*Positive Sequence Current

B-Phase Current (LLF)

LaTeX Go B Phase Current = (-1)*C Phase Current

C-Phase Current(LLF)

LaTeX Go C Phase Current = (-1)*B Phase Current

B-Phase Current using Fault Impedance (LLF) Formula

LaTeX Go

B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance
I_b = (V_b-V_c)/Z_f

What is difference between phase current and line current?

Line current is the current through any one line between a three-phase source and load. Phase current is the current through any one component comprising a three-phase source or load.

How to Calculate B-Phase Current using Fault Impedance (LLF)?

B-Phase Current using Fault Impedance (LLF) calculator uses B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance to calculate the B Phase Current, The b-phase Current using Fault Impedance (LLF) formula is defined as the current through any one component comprising a three-phase source or load. Here we have taken the b-phase. B Phase Current is denoted by I_b symbol.

How to calculate B-Phase Current using Fault Impedance (LLF) using this online calculator? To use this online calculator for B-Phase Current using Fault Impedance (LLF), enter B Phase Voltage (V_b), C Phase Voltage (V_c) & Fault Impedance (Z_f) and hit the calculate button. Here is how the B-Phase Current using Fault Impedance (LLF) calculation can be explained with given input values -> 0.6 = (16.5-17.2)/1.5.

FAQ

What is B-Phase Current using Fault Impedance (LLF)?

The b-phase Current using Fault Impedance (LLF) formula is defined as the current through any one component comprising a three-phase source or load. Here we have taken the b-phase and is represented as I_b = (V_b-V_c)/Z_f or B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance. B phase Voltage is defined as the voltage of b-phase, C phase Voltage is defined as the voltage of c-phase & Fault Impedance is a measure of the resistance and reactance in an electrical circuit that is used to calculate the fault current that flows through the circuit in the event of a fault.

How to calculate B-Phase Current using Fault Impedance (LLF)?

The b-phase Current using Fault Impedance (LLF) formula is defined as the current through any one component comprising a three-phase source or load. Here we have taken the b-phase is calculated using B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance. To calculate B-Phase Current using Fault Impedance (LLF), you need B Phase Voltage (V_b), C Phase Voltage (V_c) & Fault Impedance (Z_f). With our tool, you need to enter the respective value for B Phase Voltage, C Phase Voltage & Fault Impedance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate B Phase Current?

In this formula, B Phase Current uses B Phase Voltage, C Phase Voltage & Fault Impedance. We can use 2 other way(s) to calculate the same, which is/are as follows -

B Phase Current = (-1)*C Phase Current
B Phase Current = (sqrt(3)*A Phase EMF)/(Positive Sequence Impedance+Negative Sequence Impedance)

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